发明名称 |
Control Device with Terminal 15 - Holding Circuit |
摘要 |
A terminal state of a terminal 15 of a vehicle is enabled to be maintained for a minimum period of time even after a drop in the voltage supply. At the same time other loads are to have no effect on the holding time. A control device for controls access to a vehicle and has a voltage source, a voltage supply terminal to which a supply voltage can be applied, and a holding circuit to which the voltage source and the voltage supply terminal are connected in a common circuit point for the purpose of holding an On state for as long as the voltage at the voltage source does not fall below a predetermined value. A switching element that is connected into the circuit between the voltage supply terminal and the common circuit point serves to separate the common circuit point from the supply voltage. The holding time is thus decoupled from the VCC currents drawn by other loads.
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申请公布号 |
US2008238511(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
US20070863327 |
申请日期 |
2007.09.28 |
申请人 |
SIEMENS VDO AUTOMOTIVE AKTIENGESELLSCHAFT |
发明人 |
DESCHERMEIER GEORG;KAGERBAUER RAINER;REICHOW DIRK |
分类号 |
H03K3/02 |
主分类号 |
H03K3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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